diff --git a/.github/workflows/runcpptest.yaml b/.github/workflows/runcpptest.yaml
index 53334fbc..20eb596d 100644
--- a/.github/workflows/runcpptest.yaml
+++ b/.github/workflows/runcpptest.yaml
@@ -50,7 +50,7 @@ jobs:
 
       - name: Cache boost
         id: cache-boost
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           key: boost-cmsis-dsp
           restore-keys: |